redhat6.5安装mysql5.7

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参考来源:

http://blog.csdn.net/liyf155/article/details/61419623

1.下载:

wget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.12-1.el6.x86_64.rpm-bundle.tar

2.安装:

[[email protected] Desktop]# rpm -qa|grep mysql  # 查看是否已安装
mysql-libs-5.1.61-4.el6.x86_64
[[email protected] Desktop]# rpm -e --nodeps mysql-libs-5.1.61-4.el6.x86_64  #卸载

 

解压:tar -xf mysql-5.7.12-1.el6.x86_64.rpm-bundle.tar

顺序依次安装:

rpm -ivh mysql-community-common-5.7.12-1.el6.x86_64.rpm

rpm -ivh mysql-community-libs-5.7.12-1.el6.x86_64.rpm

rpm -ivh mysql-community-devel-5.7.12-1.el6.x86_64.rpm

rpm -ivh mysql-community-client-5.7.12-1.el6.x86_64.rpm

rpm -ivh mysql-community-server-5.7.12-1.el6.x86_64.rpm

安装最后一个包的时候报错:

error: Failed dependencies:
 libnuma.so.1()(64bit) is needed by mysql-community-server-5.7.12-1.el6.x86_64

缺少依赖包:

numactl

下载:wget http://mirror.centos.org/centos/6/os/x86_64/Packages/numactl-2.0.9-2.el6.x86_64.rpm

安装:rpm -ivh numactl-2.0.9-2.el6.x86_64.rpm

安装成功

继续上次安装完成

 

启动mysql服务:service mysqld start

[[email protected] mysql5.7]# service mysqld start
Initializing MySQL database:                               [  OK  ]
Installing validate password plugin:                       [  OK  ]
Starting mysqld:                                           [  OK  ]
[[email protected] mysql5.7]# 

登陆:mysql -u root -p,初次登录密码为空,直接回车

[[email protected] mysql5.7]# mysql -u root -p
Enter password: 
ERROR 1045 (28000): Access denied for user ‘root‘@‘localhost‘ (using password: NO)

为什么会出现这个错误,原因是因为MySQL5.7中的mysql.user 表中没有Password字段,所以要以安全方式登录,然后修改密码。
解决方法如下:
修改MySQL配置文件:vim /etc/my.cnf,在文件末尾加上:skip-grant-tables,保存后重启MySQL服务:service mysqld restart,然后重新登录。

[[email protected] mysql5.7]# service mysqld restart
Stopping mysqld:                                           [  OK  ]
Starting mysqld:                                           [  OK  ]
[[email protected] mysql5.7]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.12 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

mysql> 

修改密码:

use mysql;

update user set password_expired=‘N‘ where user=‘root’; 

update user set authentication_string=password(‘123456‘) where user=’root‘;

flush privileges;

修改MySQL配置文件:vim /etc/my.cnf,去掉文件末尾:skip-grant-tables

重启MySQL服务:service mysqld restart

其他:

  1. 编码设置:vim /etc/my.cnf,文件末尾加上编码内容default-character-set=utf8
  2. 允许远程访问MySQL:
    赋予任何主机访问数据的权限:grant all on *.* to "root"@"%" identified by "123456";
  3. 修改密码策略(可以使用简单密码):

  set global validate_password_policy=0;

  set global validate_password_mixed_case_count=0;  

  set global validate_password_number_count=3;

  set global validate_password_special_char_count=0;

   set global validate_password_length=3;

  SHOW VARIABLES LIKE ‘validate_password%‘;  

 







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